本教程是由Digital-Tutors机构出品的Maya中NURBS样条曲线建模训练教程，时长1小时28分，附工程文件。

NURBS是一种非常优秀的建模方式，在高级三维软件当中都支持这种建模方式。NURBS能够比传统的网格建模方式更好地控制物体表面的曲线度，从而能够创建出更逼真、生动的造型。

Maya 是目前世界上最为优秀的三维动画的制作软件之一，主要是为了影视应用而研发的，所以在出世后不久就在《精灵鼠小弟》、《恐龙》等这些大片中一展身手。除了影视方面的应用外Maya在三维动画制作，影视广告设计，多媒体制作甚至游戏制作领域都有很出色的表现。初识Maya 是目前世界上最为优秀的三维动画的制作软件之一，它是Alias|Wavefront公司在1998年才推出的三维制作软件。虽然相对于其他老牌三维制作软件来说Maya还是一个新生儿，但Maya凭借其强大的功能，友好的用户界面和丰富的视觉效果，一经推出就引起了动画和影视界的广泛关注，成为顶级的三维动画制作软件。

Digital-Tutors : Exploring NURBS in Maya 2012

1 hrs. 28 min.| Released on August 1, 2011|Project Files Included (307 KB)

Required Software: Maya 2012

In this course we will discuss the basics of using NURBS geometry in our modeling workflow.

NURBS stands for Non-Uniform Rational B-Spline, but they are much more useful to a 3d artist than the name might indicate. In this series of lessons we’ll get up to speed on NURBS geometry and talk about some of the ways it can be used in our modeling workflows. We’ll begin by talking about the basic NURBS building blocks and look at the different NURBS components that can be manipulated to get the shapes we want. We'll cover methods for creating curves, the framework of NURBS objects. We'll then explore many of the ways that we can use curves to create different types of NURBS objects, from revolving to extruding and lofting. We'll also talk about using trimmed surfaces to create complex cut-outs and we'll discuss NURBS parameterization. In addition, we'll look at ways of attaching and detaching curves and surfaces, combining objects with Booleans, and methods of blending together multiple objects. In the end, you'll have a better idea of what NURBS geometry is and how you can start to integrate it into your modeling workflow.

13 videos in this course

1. Introduction and project overview

2. What are NURBS?

3. Using NURBS primitives

4. Creating curves

5. Creating surfaces

6. NURBS parameters

7. Working with trims

8. Combining curves and surfaces

9. Using Booleans

10. Blending multiple surfaces

11. Texturing NURBS objects

12. Stitching patches together

13. Converting NURBS to other geometry types